Angiographic Evidence of a Purely Pial Bihemispheric Intracranial Hemangiopericytoma

Figure 1

Axial, noncontrast CT scan (a) demonstrating a hyperdense, bifrontal, parasagittal lesion with surrounding vasogenic edema. T1 weighted, postcontrast MRI images showing (b) axial, (c) sagittal, and (d) coronal views of the mass.

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